CVE-2021-23814

描述

This affects the package unisharp/laravel-filemanager prior to version 2.6.2. The `upload()` function does not sufficiently validate the file type when uploading. An attacker may be able to reproduce the following steps: - Install a package with a web Laravel application. - Navigate to the Upload window - Upload an image file, then capture the request - Edit the request contents with a malicious file (webshell) - Enter the path of file uploaded on URL - Remote Code Execution **Note: Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in the [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories).

如何修補 CVE-2021-23814

要修補 CVE-2021-23814,請將受影響套件升級到下列已修補版本。

• —升級至 2.6.2 或更新版本

CVE-2021-23814 正在被利用嗎?

低 — EPSS 為 1.8%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 2.6.2

CVSS 分數

參考連結(7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-23814
• PATCHgithub.com/UniSharp/laravel-filemanager
• WEBgithub.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php#L26
• WEBgithub.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26